Sable · Question

What is the difference between Semaglutide and Tirzepatide?

Semaglutide is a GLP-1 receptor agonist peptide with an Aib substitution at position 8 and a C18 fatty diacid on Lys26 for albumin binding, studied in incretin receptor pharmacology (peptide (lipidated), MW about 4114 g/mol).

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Last verified 2026-10-10

What is the difference between Semaglutide and Tirzepatide?

Which is heavier, Semaglutide or Tirzepatide?

Semaglutide has a molecular weight of about 4114 g/mol and Tirzepatide about 4813 g/mol (PubChem), so Tirzepatide is heavier by 699 g/mol, a ratio of 1.17. This means 1 mg of Semaglutide contains 243.1 nmol versus 207.8 nmol for Tirzepatide.

How many mg of Tirzepatide are equimolar to 1 mg of Semaglutide?

1 mg of Semaglutide (MW 4114) is 243.1 nmol. The same number of moles of Tirzepatide (MW 4813) weighs 1.17 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.

Compare the molecular formulas of Semaglutide and Tirzepatide

PubChem lists Semaglutide as C187H291N45O59 (4114 g/mol) and Tirzepatide as C225H348N48O68 (4813 g/mol). Semaglutide is a peptide (lipidated); Tirzepatide is a peptide (lipidated). These formulas refer to the parent compounds without salt counter-ions.

A 1 mg vial of Semaglutide equals how many mg of Tirzepatide in moles?

1 mg of Semaglutide (MW 4114) is 0.2431 µmol. The same amount of Tirzepatide (MW 4813) would weigh 1.17 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.

A 2 mg vial of Semaglutide equals how many mg of Tirzepatide in moles?

2 mg of Semaglutide (MW 4114) is 0.4861 µmol. The same amount of Tirzepatide (MW 4813) would weigh 2.34 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.

A 8 mg vial of Semaglutide equals how many mg of Tirzepatide in moles?

8 mg of Semaglutide (MW 4114) is 1.945 µmol. The same amount of Tirzepatide (MW 4813) would weigh 9.359 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.

A 5 mg vial of Semaglutide equals how many mg of Tirzepatide in moles?

5 mg of Semaglutide (MW 4114) is 1.215 µmol. The same amount of Tirzepatide (MW 4813) would weigh 5.85 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.

A 10 mg vial of Semaglutide equals how many mg of Tirzepatide in moles?

10 mg of Semaglutide (MW 4114) is 2.431 µmol. The same amount of Tirzepatide (MW 4813) would weigh 11.699 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.

A 20 mg vial of Semaglutide equals how many mg of Tirzepatide in moles?

20 mg of Semaglutide (MW 4114) is 4.861 µmol. The same amount of Tirzepatide (MW 4813) would weigh 23.398 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.

A 30 mg vial of Semaglutide equals how many mg of Tirzepatide in moles?

30 mg of Semaglutide (MW 4114) is 7.292 µmol. The same amount of Tirzepatide (MW 4813) would weigh 35.097 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.

A 20 mg vial of Tirzepatide equals how many mg of Semaglutide in moles?

20 mg of Tirzepatide (MW 4813) is 4.155 µmol. The same amount of Semaglutide (MW 4114) would weigh 17.095 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.

A 10 mg vial of Tirzepatide equals how many mg of Semaglutide in moles?

10 mg of Tirzepatide (MW 4813) is 2.078 µmol. The same amount of Semaglutide (MW 4114) would weigh 8.548 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.

A 5 mg vial of Tirzepatide equals how many mg of Semaglutide in moles?

5 mg of Tirzepatide (MW 4813) is 1.039 µmol. The same amount of Semaglutide (MW 4114) would weigh 4.274 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.

A 30 mg vial of Tirzepatide equals how many mg of Semaglutide in moles?

30 mg of Tirzepatide (MW 4813) is 6.233 µmol. The same amount of Semaglutide (MW 4114) would weigh 25.643 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.

A 40 mg vial of Tirzepatide equals how many mg of Semaglutide in moles?

40 mg of Tirzepatide (MW 4813) is 8.311 µmol. The same amount of Semaglutide (MW 4114) would weigh 34.191 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.

A 15 mg vial of Tirzepatide equals how many mg of Semaglutide in moles?

15 mg of Tirzepatide (MW 4813) is 3.117 µmol. The same amount of Semaglutide (MW 4114) would weigh 12.822 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.

A 60 mg vial of Tirzepatide equals how many mg of Semaglutide in moles?

60 mg of Tirzepatide (MW 4813) is 12.466 µmol. The same amount of Semaglutide (MW 4114) would weigh 51.286 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.

Cite this

Research use only. Not for consumption. No health claims.

Plain

Sable Peptides. (2026). What is the difference between Semaglutide and Tirzepatide?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/semaglutide-vs-tirzepatide/#sqa-040760

APA

Sable Peptides. (2026, October 11). *What is the difference between Semaglutide and Tirzepatide?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/semaglutide-vs-tirzepatide/#sqa-040760

BibTeX

@misc{sable_#sqa-040760_2026,
  author = {{Sable Peptides}},
  title = {{What is the difference between Semaglutide and Tirzepatide?}},
  year = {2026},
  howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/semaglutide-vs-tirzepatide/#sqa-040760}},
  note = {Accessed 11 October 2026. CC BY 4.0}
}

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Date modified: 2026-10-10